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Lens group

A lens, liquid lens technology, applied in lens, installation, optics and other directions, can solve the problems of complex structure and many voice coil motor components, and achieve the effect of accurate curvature adjustment, uniform deformation, and time saving.

Pending Publication Date: 2019-04-26
DONGGUAN PRECISION PHOTONICS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the existing voice coil motor for driving the liquid lens has many parts and complex structure, thereby providing a motor for driving the liquid lens with few parts, simple structure and low driving power consumption. , and a smaller lens group equipped with the motor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] For the motor driving the liquid lens in this embodiment, refer to figure 1 and figure 2As shown, it includes a seat body, a bracket 31 , a carrier 4 , a drive assembly and a reset member 5 .

[0032] The base body includes a lower cover 12, and an upper cover 11 fixedly connected with the lower cover 12, and the upper cover 11 has an accommodating cavity in which the carrier 4, the first lens 2 and the driving assembly are arranged. , and the cavity opening for the first lens 2 and the carrier 4 to extend out of the accommodating cavity. In this embodiment, the cavity opening is a through hole 112 adapted to the shape of the liquid lens 3 , the first lens 2 and the carrier 4 . In order to prevent the magnetic induction leakage in the driving assembly from affecting other parts outside the base, such as other parts on the mobile phone or another lens group in the dual lens group, the upper cover 11 is a metal yoke to prevent magnetic flux leakage.

[0033] In this em...

Embodiment 2

[0041] The lens group of this embodiment includes the motor for driving the liquid lens in the first embodiment, the first lens 2 and the liquid lens 3 .

[0042] The first lens 2 is fixedly installed on the lower cover 12 and is located in the accommodating cavity, and is an optical lens.

[0043] The liquid lens 3 includes a lens body, a movable plate and liquid arranged in the lens body. The movable plate moves relative to the lens body to adjust the shape of the liquid, and then adjust the curvature of the liquid lens 3 . The lens body is fixedly installed on the first lens 2 , and the first lens 2 is fixedly installed on the lower cover 12 , that is, the liquid lens 3 is installed on the base through the first lens 2 . The first lens 2 and the liquid lens 3 are distributed along the optical axis and arranged correspondingly, the distance between the first lens 2 and the liquid lens 3 is fixed, that is, the focal length between the first lens 2 and the liquid lens 3 is fix...

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Abstract

The invention relates to a driving device, and particularly relates to a motor used for driving a liquid lens and a lens group. The motor comprises a base, a supporting frame, a carrier and a drivingassembly, the base is used for fixedly installing a first lens and the liquid lens which are distributed along an optical axis and are correspondingly arranged; the carrier can be movably arranged inthe base facing towards or away from the liquid lens; the driving assembly comprises a motor arranged on the carrier and a stator arranged on the base, the stator drives the rotor to move up and downalong the optical axis and / or move deflecting from the optical axis; the supporting frame is arranged close to the carrier and is movably connected with a moving plate of the liquid lens; the carriercan be in butt joint with the supporting frame; the rotor drives the carrier to move the driving supporting frame, the moving plate is driven to move by the supporting frame to adjust the curvature ofthe liquid lens, and restoring force is provided for the carrier to allow the carrier to return to an initial position when the moving plate restores to an initial state. The motor has the advantagesthat the components are less, the structure is simple, and the driving power consumption is low.

Description

technical field [0001] The invention relates to a driving device, in particular to a motor and a lens group for driving a liquid lens. Background technique [0002] The mobile phone camera is an important part of the mobile phone. Consumers have higher and higher requirements for the functions of the mobile phone camera such as auto focus and optical image stabilization when using the mobile phone. For the beauty and convenience of the mobile phone, the size of the mobile phone camera is also required to be smaller and smaller. . The liquid lens mainly changes the curvature of the interface of the liquid body by applying a voltage to the chamber containing the liquid. The liquid lens can achieve ultra-close focusing without causing a decrease in optical resolution when performing optical anti-shake compensation , and light in weight, suitable for miniaturized imaging devices, therefore, more and more used in mobile phone cameras in recent years. [0003] At present, a came...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/00G02B7/09G02B3/14G03B13/36G03B5/00
CPCG02B26/004G02B3/14G02B7/09G03B5/00G03B13/36
Inventor 王彬洪航庆刘志远
Owner DONGGUAN PRECISION PHOTONICS LTD
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